| 22 |
|
#include "thunks.h" |
| 23 |
|
#include "emul_op.h" |
| 24 |
|
#include "cpu_emulation.h" |
| 25 |
+ |
#include "xlowmem.h" |
| 26 |
|
|
| 27 |
|
// Native function declarations |
| 28 |
|
#include "main.h" |
| 30 |
|
#include "name_registry.h" |
| 31 |
|
#include "serial.h" |
| 32 |
|
#include "ether.h" |
| 33 |
+ |
#include "macos_util.h" |
| 34 |
+ |
|
| 35 |
+ |
// Generate PowerPC thunks for GetResource() replacements? |
| 36 |
+ |
#define POWERPC_GET_RESOURCE_THUNKS 1 |
| 37 |
|
|
| 38 |
|
|
| 39 |
|
/* NativeOp instruction format: |
| 46 |
|
#define POWERPC_NATIVE_OP(LR, OP) \ |
| 47 |
|
(POWERPC_EMUL_OP | ((LR) << 11) | (((uint32)OP) << 6) | 2) |
| 48 |
|
|
| 49 |
< |
// Return the fake PowerPC opcode to handle specified native code |
| 49 |
> |
/* |
| 50 |
> |
* Return the fake PowerPC opcode to handle specified native code |
| 51 |
> |
*/ |
| 52 |
> |
|
| 53 |
|
#if EMULATED_PPC |
| 54 |
|
uint32 NativeOpcode(int selector) |
| 55 |
|
{ |
| 57 |
|
switch (selector) { |
| 58 |
|
case NATIVE_DISABLE_INTERRUPT: |
| 59 |
|
case NATIVE_ENABLE_INTERRUPT: |
| 60 |
+ |
case NATIVE_CHECK_LOAD_INVOC: |
| 61 |
|
opcode = POWERPC_NATIVE_OP(0, selector); |
| 62 |
|
break; |
| 63 |
|
case NATIVE_PATCH_NAME_REGISTRY: |
| 93 |
|
} |
| 94 |
|
#endif |
| 95 |
|
|
| 96 |
< |
// NativeOp -> { TVECT, function base } mappings |
| 96 |
> |
|
| 97 |
> |
/* |
| 98 |
> |
* Generate PowerPC thunks for GetResource() replacements |
| 99 |
> |
*/ |
| 100 |
> |
|
| 101 |
> |
#if EMULATED_PPC |
| 102 |
> |
static uint32 get_resource_func; |
| 103 |
> |
static uint32 get_1_resource_func; |
| 104 |
> |
static uint32 get_ind_resource_func; |
| 105 |
> |
static uint32 get_1_ind_resource_func; |
| 106 |
> |
static uint32 r_get_resource_func; |
| 107 |
> |
|
| 108 |
> |
static void generate_powerpc_thunks(void) |
| 109 |
> |
{ |
| 110 |
> |
static uint32 get_resource_template[] = { |
| 111 |
> |
PL(0x7c0802a6), // mflr r0 |
| 112 |
> |
PL(0x90010008), // stw r0,8(r1) |
| 113 |
> |
PL(0x9421ffbc), // stwu r1,-68(r1) |
| 114 |
> |
PL(0x90610038), // stw r3,56(r1) |
| 115 |
> |
PL(0x9081003c), // stw r4,60(r1) |
| 116 |
> |
PL(0x00000000), // lwz r0,XLM_GET_RESOURCE(r0) |
| 117 |
> |
PL(0x80402834), // lwz r2,XLM_RES_LIB_TOC(r0) |
| 118 |
> |
PL(0x7c0903a6), // mtctr r0 |
| 119 |
> |
PL(0x4e800421), // bctrl |
| 120 |
> |
PL(0x90610040), // stw r3,64(r1) |
| 121 |
> |
PL(0x80610038), // lwz r3,56(r1) |
| 122 |
> |
PL(0xa881003e), // lha r4,62(r1) |
| 123 |
> |
PL(0x80a10040), // lwz r5,64(r1) |
| 124 |
> |
PL(0x00000001), // <check_load_invoc> |
| 125 |
> |
PL(0x80610040), // lwz r3,64(r1) |
| 126 |
> |
PL(0x8001004c), // lwz r0,76(r1) |
| 127 |
> |
PL(0x7c0803a6), // mtlr r0 |
| 128 |
> |
PL(0x38210044), // addi r1,r1,68 |
| 129 |
> |
PL(0x4e800020) // blr |
| 130 |
> |
}; |
| 131 |
> |
const uint32 get_resource_template_size = sizeof(get_resource_template); |
| 132 |
> |
|
| 133 |
> |
int xlm_index = -1, check_load_invoc_index = -1; |
| 134 |
> |
for (int i = 0; i < get_resource_template_size/4; i++) { |
| 135 |
> |
uint32 opcode = ntohl(get_resource_template[i]); |
| 136 |
> |
switch (opcode) { |
| 137 |
> |
case 0x00000000: |
| 138 |
> |
xlm_index = i; |
| 139 |
> |
break; |
| 140 |
> |
case 0x00000001: |
| 141 |
> |
check_load_invoc_index = i; |
| 142 |
> |
break; |
| 143 |
> |
} |
| 144 |
> |
} |
| 145 |
> |
assert(xlm_index != -1 && check_load_invoc_index != -1); |
| 146 |
> |
|
| 147 |
> |
uint32 check_load_invoc_opcode = NativeOpcode(NATIVE_CHECK_LOAD_INVOC); |
| 148 |
> |
uintptr base; |
| 149 |
> |
|
| 150 |
> |
// GetResource() |
| 151 |
> |
get_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
| 152 |
> |
Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
| 153 |
> |
WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_RESOURCE); |
| 154 |
> |
WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
| 155 |
> |
|
| 156 |
> |
// Get1Resource() |
| 157 |
> |
get_1_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
| 158 |
> |
Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
| 159 |
> |
WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_1_RESOURCE); |
| 160 |
> |
WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
| 161 |
> |
|
| 162 |
> |
// GetIndResource() |
| 163 |
> |
get_ind_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
| 164 |
> |
Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
| 165 |
> |
WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_IND_RESOURCE); |
| 166 |
> |
WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
| 167 |
> |
|
| 168 |
> |
// Get1IndResource() |
| 169 |
> |
get_1_ind_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
| 170 |
> |
Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
| 171 |
> |
WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_1_IND_RESOURCE); |
| 172 |
> |
WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
| 173 |
> |
|
| 174 |
> |
// RGetResource() |
| 175 |
> |
r_get_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
| 176 |
> |
Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
| 177 |
> |
WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_R_GET_RESOURCE); |
| 178 |
> |
WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
| 179 |
> |
} |
| 180 |
> |
#endif |
| 181 |
> |
|
| 182 |
> |
|
| 183 |
> |
/* |
| 184 |
> |
* Initialize the thunks system |
| 185 |
> |
*/ |
| 186 |
> |
|
| 187 |
|
struct native_op_t { |
| 188 |
|
uint32 tvect; |
| 189 |
|
uint32 func; |
| 190 |
+ |
SheepRoutineDescriptor *desc; |
| 191 |
|
}; |
| 192 |
|
static native_op_t native_op[NATIVE_OP_MAX]; |
| 193 |
|
|
| 94 |
– |
// Initialize the thunks system |
| 194 |
|
bool ThunksInit(void) |
| 195 |
|
{ |
| 196 |
|
#if EMULATED_PPC |
| 202 |
|
native_op[i].tvect = base; |
| 203 |
|
native_op[i].func = base + 8; |
| 204 |
|
} |
| 205 |
+ |
#if POWERPC_GET_RESOURCE_THUNKS |
| 206 |
+ |
generate_powerpc_thunks(); |
| 207 |
+ |
native_op[NATIVE_GET_RESOURCE].func = get_resource_func; |
| 208 |
+ |
native_op[NATIVE_GET_1_RESOURCE].func = get_1_resource_func; |
| 209 |
+ |
native_op[NATIVE_GET_IND_RESOURCE].func = get_ind_resource_func; |
| 210 |
+ |
native_op[NATIVE_GET_1_IND_RESOURCE].func = get_1_ind_resource_func; |
| 211 |
+ |
native_op[NATIVE_R_GET_RESOURCE].func = r_get_resource_func; |
| 212 |
+ |
#endif |
| 213 |
|
#else |
| 214 |
< |
#if defined(__linux__) |
| 214 |
> |
#if defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) |
| 215 |
|
#define DEFINE_NATIVE_OP(ID, FUNC) do { \ |
| 216 |
|
uintptr base = SheepMem::Reserve(8); \ |
| 217 |
|
WriteMacInt32(base + 0, (uint32)FUNC); \ |
| 227 |
|
#else |
| 228 |
|
#error "FIXME: define NativeOp for your platform" |
| 229 |
|
#endif |
| 230 |
+ |
// FIXME: add GetResource() and friends for completeness |
| 231 |
+ |
DEFINE_NATIVE_OP(NATIVE_PATCH_NAME_REGISTRY, DoPatchNameRegistry); |
| 232 |
+ |
DEFINE_NATIVE_OP(NATIVE_VIDEO_INSTALL_ACCEL, VideoInstallAccel); |
| 233 |
+ |
DEFINE_NATIVE_OP(NATIVE_VIDEO_VBL, VideoVBL); |
| 234 |
+ |
DEFINE_NATIVE_OP(NATIVE_VIDEO_DO_DRIVER_IO, VideoDoDriverIO); |
| 235 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_IRQ, EtherIRQ); |
| 236 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_INIT, InitStreamModule); |
| 237 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_TERM, TerminateStreamModule); |
| 238 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_OPEN, ether_open); |
| 239 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_CLOSE, ether_close); |
| 240 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_WPUT, ether_wput); |
| 241 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_RSRV, ether_rsrv); |
| 242 |
|
DEFINE_NATIVE_OP(NATIVE_SERIAL_NOTHING, SerialNothing); |
| 243 |
|
DEFINE_NATIVE_OP(NATIVE_SERIAL_OPEN, SerialOpen); |
| 244 |
|
DEFINE_NATIVE_OP(NATIVE_SERIAL_PRIME_IN, SerialPrimeIn); |
| 249 |
|
DEFINE_NATIVE_OP(NATIVE_MAKE_EXECUTABLE, MakeExecutable); |
| 250 |
|
#undef DEFINE_NATIVE_OP |
| 251 |
|
#endif |
| 252 |
+ |
|
| 253 |
+ |
// Initialize routine descriptors (if TVECT exists) |
| 254 |
+ |
for (int i = 0; i < NATIVE_OP_MAX; i++) { |
| 255 |
+ |
uint32 tvect = native_op[i].tvect; |
| 256 |
+ |
if (tvect) |
| 257 |
+ |
native_op[i].desc = new SheepRoutineDescriptor(0, tvect); |
| 258 |
+ |
} |
| 259 |
+ |
|
| 260 |
|
return true; |
| 261 |
|
} |
| 262 |
|
|
| 263 |
< |
// Return the native function descriptor (TVECT) |
| 263 |
> |
|
| 264 |
> |
/* |
| 265 |
> |
* Delete generated thunks |
| 266 |
> |
*/ |
| 267 |
> |
|
| 268 |
> |
void ThunksExit(void) |
| 269 |
> |
{ |
| 270 |
> |
for (int i = 0; i < NATIVE_OP_MAX; i++) { |
| 271 |
> |
SheepRoutineDescriptor *desc = native_op[i].desc; |
| 272 |
> |
if (desc) |
| 273 |
> |
delete desc; |
| 274 |
> |
} |
| 275 |
> |
} |
| 276 |
> |
|
| 277 |
> |
|
| 278 |
> |
/* |
| 279 |
> |
* Return the native function descriptor (TVECT) |
| 280 |
> |
*/ |
| 281 |
> |
|
| 282 |
|
uint32 NativeTVECT(int selector) |
| 283 |
|
{ |
| 284 |
|
assert(selector < NATIVE_OP_MAX); |
| 285 |
|
const uint32 tvect = native_op[selector].tvect; |
| 286 |
|
assert(tvect != 0); |
| 287 |
< |
return native_op[selector].tvect; |
| 287 |
> |
return tvect; |
| 288 |
|
} |
| 289 |
|
|
| 290 |
< |
// Return the native function address |
| 290 |
> |
|
| 291 |
> |
/* |
| 292 |
> |
* Return the native function address |
| 293 |
> |
*/ |
| 294 |
> |
|
| 295 |
|
uint32 NativeFunction(int selector) |
| 296 |
|
{ |
| 297 |
|
assert(selector < NATIVE_OP_MAX); |
| 298 |
|
const uint32 func = native_op[selector].func; |
| 299 |
|
assert(func != 0); |
| 300 |
< |
return native_op[selector].func; |
| 300 |
> |
return func; |
| 301 |
> |
} |
| 302 |
> |
|
| 303 |
> |
|
| 304 |
> |
/* |
| 305 |
> |
* Return the routine descriptor address of the native function |
| 306 |
> |
*/ |
| 307 |
> |
|
| 308 |
> |
uint32 NativeRoutineDescriptor(int selector) |
| 309 |
> |
{ |
| 310 |
> |
assert(selector < NATIVE_OP_MAX); |
| 311 |
> |
SheepRoutineDescriptor * const desc = native_op[selector].desc; |
| 312 |
> |
assert(desc != 0); |
| 313 |
> |
return desc->addr(); |
| 314 |
> |
} |
| 315 |
> |
|
| 316 |
> |
|
| 317 |
> |
/* |
| 318 |
> |
* Execute native code from EMUL_OP routine (real mode switch) |
| 319 |
> |
*/ |
| 320 |
> |
|
| 321 |
> |
void ExecuteNative(int selector) |
| 322 |
> |
{ |
| 323 |
> |
M68kRegisters r; |
| 324 |
> |
Execute68k(NativeRoutineDescriptor(selector), &r); |
| 325 |
|
} |
